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This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. When it comes to handedness, righties rule. And according to a new study, they have for a long time, because even half a million years ago, nine out of 10

发表于:2018-12-24 / 阅读(37) / 评论(0) 分类 Scientific American(四)月

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Many of the key molecules for life have a specific direction, or handedness: DNA twists to the right, amino acids to the left. Now scientists at the Nation

发表于:2018-12-24 / 阅读(44) / 评论(0) 分类 Scientific American(四)月

[00:05.49]Why are some people left-handed? [00:09.09]Scientists have been trying to answer that question for many years. [00:14.32]Research has shown that ninety percent of people naturally use their right hands for most tasks. [00:22.94]But hundreds

发表于:2018-12-26 / 阅读(21) / 评论(0) 分类 美国英语听力80篇

经过对剑桥雅思听力题的总结,我们发现,许多题目存在着比较关系,破解了题目中的比较关系,也就可以正确解题。下面,我们就来为大家讲一讲雅思听力题中的比较关系。 在这里,我们把

发表于:2019-02-09 / 阅读(77) / 评论(0) 分类 雅思英语

新GRE阅读主要考验我们逻辑推理能力,在中国很少进行着方面的训练。逻辑推理能力在阅读中考察,从宏观上把握文章,抓住文章的主体结构是关键。下面为大家进行3种常见的GRE阅读主题结构

发表于:2019-02-17 / 阅读(32) / 评论(0) 分类 GRE英语

台湾籍旅美老师今天交给我们的句子是: And despite what many may think, handedness is not a choice. It can be predicted even before birth based on the fetus' position in the womb. So, if handedness is inborn, does that mean it's genet

发表于:2019-02-22 / 阅读(33) / 评论(0) 分类 留美老师带你每日说英文
学英语单词
-scope
absorption factor
accelerated flow method
alglucerase
allative cases
alloy secondary emission surface
alternating currents
anti-depressant
anti-idealism
Apopka, Lake
art-worlds
bacteriol.
Barossa Res.
Bathonian
borrowing short and lending short
bring sb to their knees
business institution
cast-in aluminium
chemically-strengthened glass
civic-mindedness
clock monitor
common limb
continuous path
converging curved former
corporate metabolism
cyberself
dated item
dead space characteristics
diffusing glass
document viewer
dual feed channel
economy class passenger
ELD (edge-lighted display)
engine room orders
entering port
Euphagus
fertilization theory
financial management initiative (fmi)
give someone a backhanded compliment
gyroklystron amplifier
Hamamelidales
hepatoglobinemia
Himantandraceae
Hyalospongiae
inbond brick
institucional
landleapers
large channels
last man
Lessingskop
lidderon
mediastinal Hodgkin's disease
mental points
micinicate
modern marineengine engineering
mucid
norw
odorful
on the way home
Orsay synchrotron
overall external dimension
parheliacal
passive sleep
perienteron
pidginizes
planigales
plutonyl nitrate
principle of international law
propositional content
Ranunculus dingjieensis
receiver-regulator
reclaiming conveyer
rothe
saw tooth-clothed drum drafter
sea-noise
self threading screw
self-magnetic energy
seribele
servo-operated recorder
shedd
sideronitic texture
sismondine
smirkier
sowles
specimen bottle
Steme
Strangers Cay
streering gear connecting rod
stressing gallery
symptomatic diagnostics
tear sheet
tower unloader
typhloptosis
Ulagchin
Urra
velocity excess
ventral cervical intertransverse muscle
water-vapour tension
wear upon
well sorted
wistrich
X-ray microscope